CN217073343U - Device for controlling height of film bubble position and film blowing machine - Google Patents
Device for controlling height of film bubble position and film blowing machine Download PDFInfo
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- CN217073343U CN217073343U CN202220590671.8U CN202220590671U CN217073343U CN 217073343 U CN217073343 U CN 217073343U CN 202220590671 U CN202220590671 U CN 202220590671U CN 217073343 U CN217073343 U CN 217073343U
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- 238000010096 film blowing Methods 0.000 title claims description 20
- 229920003023 plastic Polymers 0.000 claims abstract description 38
- 239000004033 plastic Substances 0.000 claims abstract description 37
- 238000012544 monitoring process Methods 0.000 claims abstract description 13
- 230000000087 stabilizing effect Effects 0.000 claims description 30
- 239000002775 capsule Substances 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 230000033228 biological regulation Effects 0.000 abstract description 9
- 239000012528 membrane Substances 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 5
- 239000002994 raw material Substances 0.000 abstract description 4
- 238000001125 extrusion Methods 0.000 abstract description 2
- 238000007493 shaping process Methods 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 description 13
- 230000001276 controlling effect Effects 0.000 description 12
- 239000006260 foam Substances 0.000 description 5
- 238000005187 foaming Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000523 sample Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000005587 bubbling Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000004033 diameter control Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model relates to a device for controlling membrane bubble position height belongs to inflation film manufacturing machine technical field, and prior art controls the height of membrane bubble position through the amount of wind of artifical manual regulation fan, and complex operation and rejection rate are high. The device comprises a distance measuring sensor for monitoring the bubble opening position of a film bubble, wherein the distance measuring sensor is connected with a PLC (programmable logic controller), and the PLC is connected with a frequency converter or (driver) for controlling a fan; the plastic raw materials follow experience high temperature plastic pipe section, bubble opening section and shaping section in proper order after inflation film manufacturing machine mould extrusion mouth extrudes, bubble opening section is the diameter from the circular arc surface structure of supreme gradual increase down, ranging sensor is located the oblique below of membrane bubble, and the monitoring position is located on the circular arc surface of bubble opening section. The device automatically adjusts the air quantity of the fan according to a preset program, simplifies the operation procedures of workers and improves the product quality.
Description
Technical Field
The utility model belongs to the technical field of inflation film manufacturing machine technique and specifically relates to a device and inflation film manufacturing machine for controlling bubble position height.
Background
The film blowing machine is a device for heating and melting plastic particles and then blowing the plastic particles into a film, and the existing film blowing machine mainly comprises a main machine, a machine head, a fan, a cooling air ring, a machine frame traction device, a curling part and the like. The plastic enters from a feed inlet of a machine barrel through a film blowing machine in operation, the heated plastic is stirred, plasticated and extruded by a screw rod after being heated, the plastic enters a machine head through a guide pipe after being filtered by a filter screen, then a high-temperature plastic pipe is extruded from an annular outlet on a mould of the machine head, a cooling air ring is arranged at the top end of the machine head, and air generated by a fan is conveyed to the cooling air ring through a pipeline and then blown out through an annular air outlet of the cooling air ring; the high-temperature plastic pipe is gradually cooled by wind blown out from the annular air outlet of the wind ring in the stretching process of the traction device, when the temperature of the high-temperature plastic pipe is reduced to the bubble opening temperature, the bubble opening temperature is formed into a film, the transition part of the film from the small-diameter high-temperature plastic pipe to the large-diameter film is generally called as a film bubble, the film bubble comprises a circular arc-shaped bottom surface, the film is connected above the film bubble, and the high-temperature plastic pipe is connected below the film bubble.
For the low-pressure film blowing machine with the bubble stabilizing rod, the bubble opening position can also directly influence the film quality, as the position of the formed film bubble is higher, and the length of the high-temperature plastic pipe is longer, in order to ensure the stability of the high-temperature plastic pipe, the film blowing machine is provided with the bubble stabilizing rod, the bubble stabilizing rod is arranged in the middle of the film opening and extends towards the upper part of the film opening, the formed high-temperature plastic pipe extruded from the film opening is sleeved on the central bubble stabilizing rod and is upwards stretched by a traction device along the direction of the central bubble stabilizing rod, the top end of the bubble stabilizing rod is provided with a conical bubble stabilizing head with a large upper part and a small lower part, and when the high-temperature plastic pipe is pulled and stretched to the position of the bubble stabilizing head and the inner diameter is smaller than the outer diameter of the bubble stabilizing head at the position, the high-temperature plastic pipe is continuously upwards stretched again and generates friction with the outer surface of the bubble stabilizing head; the friction force applied to the high-temperature plastic pipe is larger as the high-temperature plastic pipe extends upwards, the inner diameter is larger, and the pipe wall is thinner; for the film formed later, the friction force at the position can improve the brightness and transparency of the film, but can reduce the transverse tension of the film, so that for the film blowing machine provided with the bubble stabilizing rod and the bubble stabilizing head, the quality of the produced film has an important relation with the magnitude of the friction force received by the high-temperature plastic pipe, or the distance extending upwards under the action of the friction force (the distance between the high-temperature plastic pipe and the bubble stabilizing head) so as to improve the brightness of the film on the basis of ensuring the sufficient transverse tension of the film, and an appropriate friction distance, namely an appropriate bubble height, needs to be determined.
The height of the film bubble is related to the air quantity of the fan; the air quantity is increased, the cooling speed of the high-temperature plastic pipe is high, the time for forming the film by foaming and shaping the high-temperature plastic pipe is shortened, and the foaming position of the film bubble is reduced; conversely, the air volume decreases and the bubble opening position of the bubble increases. Because the film bubble in the cooling receives ambient temperature's influence very much, under the unchangeable circumstances of fan amount of wind, because ambient temperature changes, the film bubble position also can change, to this kind of circumstances at present, it controls the height of film bubble position to need the staff through the size of manual regulation fan amount of wind, so the staff needs the position of frequent inspection film bubble, and according to the deviation of the actual position of observing the film bubble and ideal position, manual regulation fan amount of wind again, this kind of method wastes time and energy, workman intensity of labour is big, and manual operation can't accomplish in time, accurate, be difficult to ensure the quality of film, the rejection rate is high.
Aiming at the problem existing in the prior art, when the position of the film bubble has a deviation, how to timely and accurately adjust the air volume of the fan to timely adjust the position of the film bubble to an ideal position is an important problem to be solved urgently by technical staff in the field.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a can automatic control inflation film manufacturing machine membrane bubble position height device, solved at present through artifical regulation membrane bubble position, waste time and energy, and timely, accurate problem inadequately.
The utility model provides a device for controlling the height of a bubble position, which comprises a distance measuring sensor for monitoring the height of a bubble opening section, wherein the distance measuring sensor is connected with a PLC (programmable logic controller), and the PLC is connected with an electric energy controller for controlling a fan; the distance measuring sensor is positioned at the oblique lower part of the bubble forming section, and the monitoring position is positioned on the arc surface of the bubble forming section.
Preferably: the projection of the distance measuring sensor in the vertical direction is positioned outside the annular air outlet of the film blowing machine.
Preferably: the ranging sensor is arranged on the mounting frame; the mounting bracket comprises a height adjusting unit and an angle adjusting unit, and the mounting bracket can change the mounting height and the monitoring angle of the distance measuring sensor.
Preferably: the height adjusting unit comprises an upper sliding rail support, a lower sliding rail support, a sliding block and a locking component, and the upper sliding rail support and the lower sliding rail support are connected with the film blowing machine frame;
the angle adjusting unit comprises a slider mounting seat and a mounting arm, the slider mounting seat is respectively hinged with the mounting arm and the slider through two rotary fixing pieces, and the distance measuring sensor is mounted on the mounting arm.
Preferably: the upper and lower slide rail brackets comprise a first rod and a second rod, the locking member comprises a positioning hole and a locking screw rod which can be detachably connected, and the locking screw rod comprises a first locking screw rod and a second locking screw rod; the first locking screw is arranged on the first rod, the second locking screw is arranged on the sliding block, and a plurality of positioning holes are formed in the length direction of the second rod; the upper end of the first rod is connected with the rack, and the overlapping length of the first rod and the second rod can be changed by fixing the first locking screw rod on different positioning holes; the position of the slider on the second rod can be changed by fixing the second locking screw on different positioning holes.
Preferably: the first rod is of a sleeve structure, is sleeved outside the second rod, and is simultaneously locked by two first locking screw rods from two adjacent surfaces of the first rod.
Preferably: the bubble stabilizing device also comprises an elastic bag body which can be arranged on the bubble stabilizing rod, wherein the cross section of the elastic bag body is in a circular ring shape and is concentric with the cross section of the bubble stabilizing rod; the elastic capsule body is internally filled with a fluid substance capable of changing the outer diameter of the elastic capsule body, and the fluid substance can enter or flow out of the elastic capsule body through a pipeline connected with the elastic capsule body.
Preferably: the outer diameter of the elastic bag body is equal to or slightly smaller than the inner diameter of the high-temperature plastic pipe.
Preferably: the distance measuring sensor is an ultrasonic sensor or a photoelectric distance measuring sensor;
the electric energy controller is a frequency converter or a driver.
The utility model also provides a inflation film manufacturing machine, include a device for controlling bubble position height.
The utility model has the advantages that: the utility model discloses a device for controlling membrane bubble position height utilizes range sensor monitoring sensor and opens the distance signal of bubble section to give the PLC controller with distance signal transmission, the PLC controller is according to receiving distance signal and settlement procedure, and through the amount of wind of electric energy controller control regulation fan, the ideal position is in time adjusted to the messenger to open the bubble section, has guaranteed the production quality of film. Compare the position change of manual observation estimation membrane bubble, the current operation of manual regulation fan amount of wind again, it is faster, accurate, reduced workman's work load, reduced the waste product probability. Other advantageous effects of the preferred embodiments of the present invention are explained in detail below.
Drawings
FIG. 1 is a schematic view of a part of the structure of an apparatus for controlling the height of a bubble in this embodiment 1;
fig. 2 is a schematic structural view of another state of the mount in the embodiment 1;
in the figure: 11. a first lever; 12. a second lever; 13. a slider; 14. a slider mounting base; 15. positioning holes; 16. locking the screw rod; 17. rotating the fixed member; 18. mounting an arm; 2. an ultrasonic sensor; 3. cooling the air ring; 31. an annular air outlet; 32. a fan; 33. a frequency converter; 4. a bubble stabilizing rod; 41. a bubble stabilizing head; 42. an elastic bladder body; 51. a high temperature plastic pipe section; 52. a foam opening section; 53. a forming section; 9. a PLC controller.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The following are some noun concepts to which the present invention relates:
after being extruded from a die orifice of a film blowing machine, the plastic raw material sequentially passes through a high-temperature plastic pipe section, a foaming section and a molding section;
wherein the content of the first and second substances,
the high-temperature plastic pipe section is a part from the extrusion of plastic raw materials from a film opening of a film blowing machine to the sudden increase of the inner diameter; the inner diameter and the thickness of the high-temperature plastic pipe are respectively determined by the inner diameter of a film opening of the film blowing machine and the gap of the film opening.
The bubble opening section is of a circular arc surface structure with the diameter gradually increasing from bottom to top, and is also called a film bubble (an area represented by an OH section in figure 1);
the forming section is the position after the bubble opening action is finished and the film is formed into a stable cylindrical film.
The foaming section and the forming section are in ideal position states, the film quality meets the production requirements, and the standard of the ideal position is determined according to actual production.
Example 1
As shown in fig. 1, the embodiment provides a device for controlling the height of a bubble position, which includes a distance measuring sensor for monitoring the bubble opening position of the bubble, wherein the distance measuring sensor is connected with a PLC controller, and the PLC controller is connected with an electric energy controller for controlling a fan; the power controller may be a frequency converter or a driver. Specifically, electric energy controller is the converter in this embodiment, and the converter can be through the rotational speed that changes the fan to change the fan amount of wind. The distance measuring sensor can be an ultrasonic sensor or a photoelectric distance measuring sensor, and can be used for monitoring the position of the plastic film bubble including the transparent plastic film bubble, because some photoelectric sensors with lower precision and sensitivity cannot monitor the transparent film, the distance measuring sensor of the embodiment is an ultrasonic sensor, the connection mode, the working mode and the like of the ultrasonic sensor and the PLC controller, and the working mode that the PLC controller controls the air volume of the fan through the frequency converter belongs to the prior art, and is not elaborated herein.
In order to accurately monitor, the ultrasonic sensor is installed at the oblique lower part outside the bubble opening section, after the angle is adjusted (the angle between the direction of ultrasonic waves emitted by the ultrasonic sensor and the horizontal direction is set as B), a signal emitting port (also called a probe) faces the direction of the bubble opening section, the circular arc surface of the film bubble can be monitored in the direction, then the distance value from the position to the ultrasonic sensor is monitored (the distance value is set as d), the height difference d x SinB of the monitored point relative to the ultrasonic sensor in the vertical direction can be calculated through the distance value d and the angle B, and the distance value d is positively correlated with the height of the bubble opening section because the SinB is a fixed value; the air quantity of the fan is adjusted to be large, so that the foam opening can be advanced, and the foam opening position is lowered; the air quantity of the fan is adjusted to be small, so that the bubbling can be delayed, and the bubbling position is improved; therefore, the distance value d monitored by the ultrasonic sensor is in negative correlation with the air quantity of the fan, and according to the relation, the PLC can adjust the air quantity of the fan by controlling the electric energy controller according to a stored specific calculation method and a stored regulation program, so that the position of the bubble opening section is adjusted, and the film bubble is maintained at an ideal position.
For example, a standard distance value d0 (distance monitored by a distance measuring sensor when the bubble opening section is at a standard position) can be set, a standard range (- Δ d0, Δ d0) is set by using d-d0 as a calculation method, Δ d0 is a range in which the actual position of the bubble opening section can float up and down relative to the standard position, and when d-d0 is greater than Δ d0, the position of the bubble opening section is higher than the highest standard of an ideal state, the air volume of the fan is adjusted to be increased, so that the position of the bubble opening section is increased; when d-d0 is smaller than-delta d0, the position of the bubble opening section is higher than the highest standard of an ideal state, the air quantity of the fan is adjusted to be increased, and the position of the bubble opening section is reduced.
The outlet of the cooling air ring is directed upward, and the blown air is upward along the outlet (as shown by the arrow above the outlet in fig. 1). In this embodiment, in order to avoid the ultrasonic sensor after installation from obstructing the wind blown out from the cooling wind ring, the projection of the ultrasonic sensor in the vertical direction is located outside the wind outlet of the cooling wind ring.
Different inflation film manufacturing machines, perhaps same inflation film manufacturing machine are when using different raw materials membrane, or when the size of the specification thickness size change of product, the ideal position of bubble can change, when the bubble position changes, in order to the position of accurate monitoring bubble, the orientation angle of the position that probably needs to adjust ultrasonic sensor and probe. In order to conveniently adjust the position of the ultrasonic sensor, the application range of the device for controlling the height of the bubble position in the embodiment is widened, and the ultrasonic sensor in the embodiment is mounted through a mounting frame, for example, on a frame of the film blowing machine, on the ground nearby, or at a proper position of a main machine of the film blowing machine.
The mounting bracket of this embodiment is including the height control unit and the angle modulation unit that are connected, both can adjust ultrasonic sensor's height, can adjust the orientation angle of probe again. The height adjusting unit can be a device with adjustable length such as an air cylinder, a liquid rod and a telescopic rod, and the angle adjusting unit is a structure which can enable the ultrasonic sensor to be connected with the height adjusting unit and can adjust the orientation angle of the ultrasonic sensor.
Specifically, as shown in fig. 1 and fig. 2, in this embodiment, the height adjusting unit includes an upper and a lower slide rail brackets, a slider, and a locking member, and the upper and the lower slide rail brackets are connected to the frame of the film blowing machine; the angle adjusting unit comprises a sliding block mounting seat and a mounting arm hinged with the sliding block mounting seat, an ultrasonic sensor is mounted on the mounting arm, and the sliding block mounting seat is hinged with a sliding block.
The upper and lower slide rail brackets comprise a first rod and a second rod, the locking member comprises a positioning hole and a locking screw rod which can be detachably connected, and the locking screw rod comprises a first locking screw rod and a second locking screw rod; the first locking screw rod is arranged on the first rod, the second locking screw rod is arranged on the sliding block, and a plurality of positioning holes are formed in the length direction of the second rod.
The first locking screw rod is fixed on different positioning holes, so that the overlapping length of the first locking screw rod and the second locking screw rod is changed, and the length range of the second locking screw rod and the first locking screw rod in the height direction is changed. In order to improve the stability of connecting first pole and second pole, first pole is the bushing structure, and the second pole cover is established in first pole, has all set up first locking screw on two adjacent faces of first pole, locks first pole and second pole from two different faces, has strengthened the stability of both connections.
The slide block is connected with the positioning hole in the second rod through the second locking screw rod, and the position of the slide block can be changed by changing the position of the connected positioning hole.
The slider mount pad is connected with slider and installation arm respectively through two rotatory mountings, and at this moment, ultrasonic sensor can rotate through the relative slider mount pad of rotatory mounting, and the range of regulation has been enlarged to position and angle when the relative slider of slider mount pad rotates again. The rotating fixing piece can be a proper bearing or other existing structures, the two connected parts can rotate relatively under the action of external force, and the locking structure arranged between the internal locking structure of the rotating fixing piece and the sliding block mounting seat can be relied on after the external force disappears, or the relative fixed angle can be maintained by means of the friction force between the internal locking structure of the rotating fixing piece and the sliding block mounting seat. In the embodiment, the sliding block and the sliding block mounting seat are both of plate-shaped structures, the contact surface is large when the sliding block and the sliding block mounting seat are in mutual contact, the friction force is large, the mounting arm and the ultrasonic sensor are light in weight, the situation can be maintained stably through the friction force between the mounting seat and the sliding block, and the mounting arm and the sliding block mounting seat can also be maintained at a proper angle through the friction force and are kept stably. Fig. 2 is a schematic structural view of another state of the mounting bracket, and it can be seen that the height and the angle of the distance measuring sensor can be conveniently adjusted through the mounting bracket.
The embodiment also comprises a plurality of elastic bag bodies sleeved on the bubble stabilizing rod, wherein the cross sections of the elastic bag bodies are circular and are concentric with the cross section of the bubble stabilizing rod; the size of the outer diameter of the elastic balloon can be changed by decreasing or increasing the amount of fluid substance that is introduced into or removed from the elastic balloon through a line connected to the elastic balloon.
The fluid substance can be high-temperature-resistant liquid or gas, the integrity of the high-temperature plastic pipe cannot be influenced by the installation of the pipeline, and the fluid substance can be led out from the inner space of the foam stabilizing rod downwards and out of the inner space of the machine head or the mould. The pipeline is connected with a device for providing liquid or gas outside the film blowing machine, a valve can be arranged on the pipeline, the valve can be connected with the PLC, the valve can be conveniently controlled to be opened and closed through the PLC, and fluid in the elastic bag body can be conveniently discharged or filled into the elastic bag body.
The elastic bag body is made of materials with elasticity, water resistance or gas resistance, preferably high-temperature resistant materials, or is wrapped with the high-temperature resistant materials. Above-mentioned elasticity utricule is established to the cover on steady bubble pole, through the size of what of the inside mobile material of adjustment elasticity utricule control elasticity utricule external diameter, the size of adjustment elasticity utricule external diameter, with the external diameter control of elasticity utricule slightly less than or equal to the internal diameter of high temperature plastic tubing, the high temperature plastic tubing that is arranged in stabilizing the drawing is in order to reduce the disturbance of cooling air to it to make the stability of membrane bubble, and then guarantee the quality of film. The quantity that elasticity utricule set up is more, and the stability of high temperature plastic tubing is better, and relative equipment structure and operation are also more complicated, so according to the length of foam stabilizing rod and actual need, can set up elasticity utricule in suitable position. In order to improve the supporting and stabilizing effect, when the number of the elastic bag bodies is multiple, the elastic bag bodies can be uniformly arranged on the bubble stabilizing rod. As shown in fig. 1, in this embodiment, the number of the elastic bladders is two, and the elastic bladders are arranged at a position on the bubble stabilizing rod near the bubble stabilizing head (a position where the high-temperature plastic tube is about to bubble) and a position near the cooling air ring (a position where the high-temperature plastic tube is just extruded).
In this implementation, the quantity of ultrasonic sensor can be one or more, and the more data of monitoring that the quantity of ultrasonic sensor is more are many, can utilize the average value to obtain more accurate distance deviation value to more accurate regulation fan's amount of wind. In this embodiment, fig. 1 shows the case of one ultrasonic sensor.
Example 2
This embodiment provides a inflation film manufacturing machine, including embodiment 1's the device that is used for controlling the bubble position height, certainly still include other current structures such as host computer, aircraft nose, mould, fan, cooling wind ring, draw gear, steady bubble pole and frame, the device through this embodiment uses with other current structure cooperations, has improved work efficiency and film quality greatly.
The above embodiments are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention, and all should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. An apparatus for controlling the height of a bubble, comprising: the device comprises a distance measuring sensor for monitoring the height of a bubble opening section, wherein the distance measuring sensor is connected with a PLC (programmable logic controller), and the PLC is connected with an electric energy controller for controlling a fan; the distance measuring sensor is positioned below the bubble forming section in an inclined mode, and the monitoring position is positioned on the arc surface of the bubble forming section.
2. The apparatus of claim 1, wherein: the projection of the distance measuring sensor in the vertical direction is positioned outside the annular air outlet of the film blowing machine.
3. The apparatus of claim 1, wherein: the ranging sensor is arranged on the mounting frame; the mounting bracket comprises a height adjusting unit and an angle adjusting unit, and the mounting bracket can change the mounting height and the monitoring angle of the distance measuring sensor.
4. The apparatus of claim 3, wherein: the height adjusting unit comprises an upper sliding rail support, a lower sliding rail support, a sliding block and a locking component, and the upper sliding rail support and the lower sliding rail support are connected with the film blowing machine frame;
the angle adjusting unit comprises a slider mounting seat and a mounting arm, the slider mounting seat is respectively hinged with the mounting arm and the slider through two rotary fixing pieces, and the distance measuring sensor is mounted on the mounting arm.
5. The device for controlling the position height of the film bubble according to claim 4, wherein the upper and lower slide rail brackets comprise a first rod and a second rod, the locking member comprises a positioning hole and a locking screw rod which can be detachably connected, and the locking screw rod comprises a first locking screw rod and a second locking screw rod; the first locking screw is arranged on the first rod, the second locking screw is arranged on the sliding block, and a plurality of positioning holes are formed in the length direction of the second rod; the upper end of the first rod is connected with the rack, and the overlapping length of the first rod and the second rod can be changed by fixing the first locking screw rod on different positioning holes; the position of the slider on the second rod can be changed by fixing the second locking screw on different positioning holes.
6. The apparatus of claim 5, wherein: the first rod is of a sleeve structure, is sleeved outside the second rod, and is simultaneously locked by two first locking screw rods from two adjacent surfaces of the first rod.
7. The apparatus of claim 1, wherein: the bubble stabilizing device also comprises an elastic bag body which can be arranged on the bubble stabilizing rod, wherein the cross section of the elastic bag body is in a circular ring shape and is concentric with the cross section of the bubble stabilizing rod; the elastic capsule body is internally filled with a fluid substance capable of changing the outer diameter of the elastic capsule body, and the fluid substance can enter or flow out of the elastic capsule body through a pipeline connected with the elastic capsule body.
8. The apparatus of claim 7, wherein: the outer diameter of the elastic bag body is equal to or slightly smaller than the inner diameter of the high-temperature plastic pipe.
9. The apparatus of claim 1, wherein:
the distance measuring sensor is an ultrasonic sensor or a photoelectric distance measuring sensor;
the electric energy controller is a frequency converter or a driver.
10. The film blowing machine is characterized in that: comprising a device for controlling the height of the position of the bubble according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220590671.8U CN217073343U (en) | 2022-03-18 | 2022-03-18 | Device for controlling height of film bubble position and film blowing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220590671.8U CN217073343U (en) | 2022-03-18 | 2022-03-18 | Device for controlling height of film bubble position and film blowing machine |
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| CN217073343U true CN217073343U (en) | 2022-07-29 |
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| CN202220590671.8U Active CN217073343U (en) | 2022-03-18 | 2022-03-18 | Device for controlling height of film bubble position and film blowing machine |
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| CN (1) | CN217073343U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102636967B1 (en) * | 2023-02-03 | 2024-02-16 | 주식회사 아주 | Film manufacturing device using blown extrusion |
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- 2022-03-18 CN CN202220590671.8U patent/CN217073343U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102636967B1 (en) * | 2023-02-03 | 2024-02-16 | 주식회사 아주 | Film manufacturing device using blown extrusion |
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Effective date of registration: 20240403 Address after: 062550 South of Zhengluo Village, Liangzhao Town, Renqiu City, Cangzhou City, Hebei Province Patentee after: Renqiu Ouke mechanical equipment Co.,Ltd. Country or region after: China Address before: No. 689, ZhengLuo village, Liangzhao Town, Renqiu City, Cangzhou City, Hebei Province 062550 Patentee before: Zhou Suoliang Country or region before: China |